20494917

素因数分解:

$3^3\times {\mathrm{271}}^1\times {\mathrm{2801}}^1$

素因数の和:3081

約数の個数: 16

約数和(自身を含む): 30485760

約数和(自身を除く): 9990843

約数列:

[1, 3, 9, 27, 271, 813, 2439, 2801, 7317, 8403, 25209, 75627, 759071, 2277213, 6831639, 20494917]

約数ペア:

[(1, 20494917), (3, 6831639), (9, 2277213), (27, 759071), (271, 75627), (813, 25209), (2439, 8403), (2801, 7317)]